Remove unused puppet module

The remove_nginx module isn't used anywhere, so just delete it rather
than splitting it out.

Change-Id: Ia47cb24a9a91e16ad0eae47f537358be2fe84a94

modules/remove_nginx/manifests/init.pp

@@ -1,13 +0,0 @@
-# == Class: remove_nginx
-#
-class remove_nginx {
-  package { 'nginx':
-    ensure => absent,
-  }
-  file { '/etc/nginx/sites-available/default':
-    ensure => absent,
-  }
-  service { 'nginx':
-    ensure => stopped,
-  }
-}